Clutch for gripping pins or rods.



LAANEBUD, CLUTCH FOR GRIPPING PINS 0R RODS.

APPLICATION FILED MAY 8| |913- v 1,1 90,362'. Patented July 11,l 191@ ll i l @am www @y MJMMMWu/y LoUIs AANERUD, or CHICAGO, ILLINOIS,`AssICNoa Tor. II. MCB'LE a CCivIrANY, or

n ACurries.

CHICAGO, ILLINOIS, A CORPORATION OFYILLINOIS.

CLUTCH For. GRIPPINC PINS R Irons.

Specification of Letters Patent.

Patented July 1I, 191e.

Application filed May 8', 1913. Serial No. 766,276.

T0 all whom t may concern Be it known that I, Louis AANERUD, a citizenof the United States, residing at Chicago, county of Cook, and State ofIllinois, have invented-certain new and useful Improvements in Clutchesfor Gripping Pins or Rods, of which the following is a description,reference being had to the accompanying drawings, forming part of thisspecilication.

My invention relates to clutches which are particularly adapted for useupon scarf pins or other ornamental stick pins to prevent theirdetachment from articles upon which they may be worn, and also for useupon hatpins, both to guard against their casual displacement and tocover the points so as to guard against injury tovthose who might comeinto accidental contact with them.

Theobject of my invention is to provide a device of this character whichshall be sim poses for which it is designed, strong, andV economical tomanufacture.

In the drawings, Figure 1 is a longitudinal section' of a form of my`device. particularly adapted to serve as a point protector for ahatpin;Fig. 2 is a View, partly in section and partly in elevation, taken atright angles to the position shown in Fig. 1; Fig. 3 a view of anotherform adapted` to be used as a retaining device for scarf pins and the'like; and Fig. 4 a detail of the clutching element of the device.

Like letters of reference refer to the same parts in the differentfigures.

Referring to Figs. l and 2, the casing which carries the clutchingmechanism of my device comprises an enlarged rounded or protuberant fportion A of ovoid contour, and a cylindrical or tubular end portion A.Fixed in the rounded part of the casing, and extending intothe'cylindrical portion is a perforated block or bushing B, the end ofwhich is struck olf obliquely or beveled. Directly opposite the obliqueend or face of the bushing the tubular end A of the casing is slottedlongitudinally. Within the cylindrical bore of such tubular portion ofthe casing, between the end thereof and the oblique face of the bushingis a clutchingV tongue C which projects through the slot beforementioned Yin the tubular portion A of the casing. Arranged upon theoutsidel ing tends to force the disk C toward the p bushing B and causeit to lie obliquely with respect to the bore of the casing, with thetongue C of the disk in Contact with the inside of the wall of the slideE at the base of the latter, so that thev slide will be yieldingly heldagainst the protuberant portion A of the casing, the disk then lyingnearly llat against the oblique face of the bushing, but preferably notquite so. Inasmuch as the device illustrated in Figs.' 1 and 2 isintended as a guard forthe point of a hat pin, the outer end of theovoid portion of the casing only is perforated, the end of the tubularportion at the opposite extremity of the device being imperforate. Ifdesired a block or pad F of anysuitable, relatively soft material suchas fiber or wood, may be placed at the end of such tubular end toprevent the points of the pins being dulled.

The operation of the clutch will be readily understood without detailedexplanation. VVh'en the pin. is inserted it has a tendency, on entering,to press the clutching` disk backward and cause it to assume a positionmore'nearly at right angles to the axial line of the device, the resultbeing that the guard may easily be placed upon the point of the pin; butwhen the pin and guard are pulled backwardly, or in the oppositedirection, the clutching disk will tend to assume a. more obliqueposition with respect to the pinand thus grip it securely and preventits withdrawal. When, however, the slide E is slid along the tubularportion A y of the casing away from the ovoid or protuberant portionA,-.-which may readily be done by squeezing them apart by the thumb andforefnger placed between them-the inner surface of the slide willcontact the tongue of the Clamping disk and shift the disk and changeits inclination so as to release the pin and permit the removal 'of thedevice therefrom.

In Fig. 3 is shown a form of my clutch deviceadapted to serve as a scarfor stick pin retainer. In this form the tubular p0rtion of the device ispreferably somewhat shorter than in the hatpin guard, and is perforatedat its end so that the device may be attached to the pin at any desiredpoint.

I claim:

1. A clutch for gripping pins and rods comprising'a slotted casinghaving a protuberant portion, a perforated inclined clutching memberWithin the casing extending through the slot of the latter and arrangedto fulcrum upon said abutment, a spring tending to press said clutchingmember against said abutment, and a protuberant slide upon said casingcontacting the projecting portion of the clutching member and arrangedadjacent the protuberant portion of the casing, whereby the slide may beshifted against the stress of its spring to release the clutch by apinching pressure between the slide and said protuberant portion of thecasing.

2. A clutch for gripping pins or rods comprising a casing formed with acylindrical bore having an internal abutment at the end opposite itsbase and formed with a longitudinal slot diametrically opposite saidabutment, a perforated disk free Within said casing arranged to fulcrumupon said abutment and having a tongue arranged to project through saidslot, a spring in said cylinder confined between the base thereof andsaid disk and tending to press the latter against said abutment, and aslide arranged to engage the projecting end of the tongue upon the diskand move it toward the base of the cylinder to turn the disk todisengaging position.

8. A clutch for gripping pins or rods comprising a casing having aprotuberant portion and a tubular end, a perforated bushing in saidprotuberant portion having an oblique face adjacent said tubular end, a

perforated disk in said tubular end adjacent the oblique face of thebushing, a spring in said tubular end tending to press the disk towardsuch oblique face, and ay disengaging slide on the tubular end arrangedto engage said disk and shift it against the stress of the spring.

4L. A clutch for gripping pins or rods comprising a casing having aprotuberant portion and a slotted tubular end, said tubular end forminga cylindrical bore Which terminates adjacent the protuberant end of thecasing in a perforated oblique face, a perforated disk Within said boreadjacent said face and having a tongue arranged to project through theslot in the casing, a spring in said bore tending to press the diskagainst said oblique face, and a slide arranged to engage the projectingend ofthe tongue upon the disk and shift it against the stress of thespring.

5. A clutch for gripping pins or rods coinprising a casing having aprotuberant portion and a slotted tubular end portion, a perforatedbushing in said protuberant portion having an oblique face extendinginto said tubular end, a perforated disk in said tubular end adjacentthe oblique face of the bushing and having a tongue arranged to projectthrough the slot in the casing, a

spring in said bore tending to press the disk toward said oblique face,and a hollow protuberant slide adjacent the protuberant portion of thecasing arranged to cover the proj ecting end of the tongue upon the diskand engage the same to shift it against the stress of the spring.

LOUIS AANERUD.

Witnessed by- Louis B. ERWIN, ROBERT DOBBERMAN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

Itis hereby certiied that the name of the assignee in Letters Patent No.1,190,362, granted duly 11, 1916, upon the application of Louis Aaierud,of Chicago, Illinois, for an improvement in Clutches for Gripping Pinsor Rods, Was erroneously written and printed as F. H. Moble 8a Company,Whereas said name should have been Written and printedas F. H. Noble c@Company, as shown by the records of assignments in this Oice; and thatthe said het ters Patent should be read With this correction thereinthat the same may conform to the record of the case in the PatentOffice.

Signed .and sealed this 15th day of August, A. D., 1916.

[SEAL] F. W. H. CLAY,

, vActif/Lg Commissioner of Patents. o1. 24-155.

